Liquitex Surface Prep Mediums are used to seal, prime and add tooth (for color adhesion) to all surfaces such as canvas, wood, paper and metal. This same preparation is used for both acrylic and oil paint. It's an excellent base coat primer for many applications, including murals. Liquitex gesso is lightweight and nontoxic, and it dry to a water-resistant, non-yellowing surface. These professional gessoes usually take just one coat, and can be tinted with up to 10% Liquitex Soft Body or Heavy Body Artist Colors. Details:White4 fl. oz. (118 mL) bottle size6 bottlesLightweight, nontoxic and dries to a water-resistant, non-yellowing surfaceIntermixable with Liquitex Professional Acrylic Paint colors and mediums